Going to Tokyo four couple weeks,Advice Needed.

I am planning to go to tokyo for about 3 weeks, and I am plannign to go with my friend, but the thing is that I can't be together with his parents, so I am basically going to go by myself.





1.)A place to stay, but I don't want to stay at somewhere cheap.I heard of that Capsule Hotel, but I was not sure if it was possible to stay for 3 weeks, well, I guess it is, but just making sure.





2.)Rail Pass, now I heard this from my friend, any good place to buy it for cheap?





3.)Cell Phones. I heard rental service is not that cheap, so I thought of buying a prepaid overthere, but any other good ideas?





I need help of those 3. Thank you.Going to Tokyo four couple weeks,Advice Needed.
If you're under 18, you're going to have a major problem. Nothing is cheap in Japan. Unless you go to a 100 yen store.


A capsule room has no room for anything other than you. It won't hold luggage, ect. But they're the cheapest place to sleep.